diff --git a/src/rtl_tcp.c b/src/rtl_tcp.c
index ad930c8..89b1fb9 100644
--- a/src/rtl_tcp.c
+++ b/src/rtl_tcp.c
@@ -56,9 +56,9 @@ typedef int socklen_t;
 #define SOCKET_ERROR -1
 #endif
 
-static const char*    DEFAULT_PORT_STR = "1234";
-static const uint32_t DEFAULT_SAMPLE_RATE_HZ = 2048000;
-static const int      DEFAULT_MAX_NUM_BUFFERS = 500;
+#define DEFAULT_PORT_STR "1234"
+#define DEFAULT_SAMPLE_RATE_HZ 2048000
+#define DEFAULT_MAX_NUM_BUFFERS 500
 
 static SOCKET s;